LOINC Code 53977-5: Dimagnesium phosphate crystals LM Ql (Urine sed)

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Dimagnesium phosphate crystals. It is commonly used with the system or sample type Urine sed.

When is it used?

• Used in lab systems, EHRs, and clinical data exchange.
• May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
• Status: ACTIVE
• Order vs observation: Observation
• Method: Microscopy.light

What it does not mean

• The code identifies the observation or test, not the actual result.

Key facts

• Dimagnesium phosphate crystals [Presence] in Urine sediment by Light microscopy
• Dimagnesium phosphate crystals
• Crys; Cryst; Crystal; Di-Mg phos cry; i Phos; Inorganic phosphate; Kidney; LM; Micro; Micros; Microscopic; Nephrology; Ordinal; Phos; Phosphate total; Phosphorous; Phosphorus; Phosphrous; Pi; PO4; Point in time; PR; QL; Qual; Qualitative; Random; Renal; Screen; UA; UR; URINALYSIS; Urine sediment; Urn; UrnS

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

Frequently asked questions